基于差异检验的飞行超限事件参数特征分析

提出一种利用差异检验对QAR超限事件与飞行记录数据进行分析的方法,以从海量的QAR飞行数据中提取出带有指导意义的信息。首先研究了将KW检验应用于QAR超限事件分析的可行性;然后针对某超限事件进行典型参数选择,并对发生与未发生该超限事件进行分组,对所选择的航班采样数据进行KW检验,根据检验结果判断某飞行阶段中被选择的典型参数是否存在显著差异。最后对于存在显著差异的参数,分析其参数特征,通过理论与经验对其进行解释,研究其对于超限事件的影响。通过对爬升速度大（35-1000 ft）,下降率大（2000-1000 ft）及接地点远三项超限事件进行举例分析,可以看出KW检验能够分析飞行参数的分布差异,进而为事件分析提供经验性的判读依据,并为飞行安全管理工作提供指导。

Analysis on paremeters characteristics of flight exceedance events based on distinction test

A method was put forward,which was based on distinction test and used to analyze the QAR exceedance events and flight data from QAR,to transform abundant data into useful,guiding and improving knowledge.Firstly,the applicability of the KW Test for analysis of exceedance events detected from QAR data was studied.And then some typical parameters were selected for the analysis,then the selected data from all flights were collected and processed with KW Test to find out significant distinctions of parameters between flights exceeding and not-exceeding.Thirdly the performances of parameters with significant distinctions were analyzed and explained with theory and experience,so that the influence of parameters on events could be explored.The events of Climb Speed High（35-1000ft）,Descent Rate High（2000-1000ft）,and Long Landing were given as examples of analysis.It can be seen from the research that KW Test can be used to measure the distribution distinction of flight parameters.The method in this paper can provide clues for experiential explanations of performance and mechanism of events and give guidance to aviation safety management work.